Cleanups Spring Data JPA example.

Various cleanups to the Spring Data JPA example, including:

* Move repositories into service package and make them package private
  thus only expose the service interfaces to clients.
* Merge HotelRepository and HotelSummaryRepository and make service
  implementations package protected.
* Introduce integration test base class to bootstrap the app as
  SpringAppliation.run would.
* Refactor central test case to rather use Spring MVC integration
  testing framework.
* Add integration tests for repositories to execute query methods.

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/domain/repository/HotelRepository.java

@@ -1,27 +0,0 @@
-/*
- * Copyright 2012-2013 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.sample.data.jpa.domain.repository;
-
-import org.springframework.boot.sample.data.jpa.domain.City;
-import org.springframework.boot.sample.data.jpa.domain.Hotel;
-import org.springframework.data.repository.Repository;
-
-public interface HotelRepository extends Repository<Hotel, Long> {
-
-	Hotel findByCityAndName(City city, String name);
-
-}

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/domain/repository/HotelSummaryRepository.java

@@ -1,106 +0,0 @@
-/*
- * Copyright 2012-2013 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.sample.data.jpa.domain.repository;
-
-import java.util.List;
-import java.util.Locale;
-
-import javax.persistence.EntityManager;
-import javax.persistence.PersistenceContext;
-import javax.persistence.Query;
-
-import org.springframework.boot.sample.data.jpa.domain.City;
-import org.springframework.boot.sample.data.jpa.domain.Hotel;
-import org.springframework.boot.sample.data.jpa.domain.HotelSummary;
-import org.springframework.boot.sample.data.jpa.domain.RatingCount;
-import org.springframework.data.domain.Page;
-import org.springframework.data.domain.PageImpl;
-import org.springframework.data.domain.Pageable;
-import org.springframework.data.domain.Sort;
-import org.springframework.data.domain.Sort.Order;
-import org.springframework.stereotype.Repository;
-
-@Repository
-public class HotelSummaryRepository {
-
-	private static final String AVERAGE_REVIEW_FUNCTION = "avg(r.rating)";
-
-	private static final String FIND_BY_CITY_QUERY = "select new "
-			+ HotelSummary.class.getName() + "(h.city, h.name, "
-			+ AVERAGE_REVIEW_FUNCTION
-			+ ") from Hotel h left outer join h.reviews r where h.city = ?1 group by h";
-
-	private static final String FIND_BY_CITY_COUNT_QUERY = "select count(h) from Hotel h where h.city = ?1";
-
-	private static final String FIND_RATING_COUNTS_QUERY = "select new "
-			+ RatingCount.class.getName() + "(r.rating, count(r)) "
-			+ "from Review r where r.hotel = ?1 group by r.rating order by r.rating DESC";
-
-	private EntityManager entityManager;
-
-	public Page<HotelSummary> findByCity(City city, Pageable pageable) {
-		StringBuilder queryString = new StringBuilder(FIND_BY_CITY_QUERY);
-		applySorting(queryString, pageable == null ? null : pageable.getSort());
-
-		Query query = this.entityManager.createQuery(queryString.toString());
-		query.setParameter(1, city);
-		query.setFirstResult(pageable.getOffset());
-		query.setMaxResults(pageable.getPageSize());
-
-		Query countQuery = this.entityManager.createQuery(FIND_BY_CITY_COUNT_QUERY);
-		countQuery.setParameter(1, city);
-
-		@SuppressWarnings("unchecked")
-		List<HotelSummary> content = query.getResultList();
-
-		Long total = (Long) countQuery.getSingleResult();
-
-		return new PageImpl<HotelSummary>(content, pageable, total);
-	}
-
-	@SuppressWarnings("unchecked")
-	public List<RatingCount> findRatingCounts(Hotel hotel) {
-		Query query = this.entityManager.createQuery(FIND_RATING_COUNTS_QUERY);
-		query.setParameter(1, hotel);
-		return query.getResultList();
-	}
-
-	private void applySorting(StringBuilder query, Sort sort) {
-		if (sort != null) {
-			query.append(" order by");
-			for (Order order : sort) {
-				String aliasedProperty = getAliasedProperty(order.getProperty());
-				query.append(String.format(" %s %s,", aliasedProperty, order
-						.getDirection().name().toLowerCase(Locale.US)));
-			}
-			query.deleteCharAt(query.length() - 1);
-		}
-	}
-
-	private String getAliasedProperty(String property) {
-		if (property.equals("averageRating")) {
-			return AVERAGE_REVIEW_FUNCTION;
-		}
-		return "h." + property;
-	}
-
-	@PersistenceContext
-	public void setEntityManager(EntityManager entityManager) {
-		this.entityManager = entityManager;
-	}
-
-}

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/CityRepository.java

@@ -14,19 +14,19 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.sample.data.jpa.domain.repository;
+package org.springframework.boot.sample.data.jpa.service;
 
 import org.springframework.boot.sample.data.jpa.domain.City;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.Repository;
 
-public interface CityRepository extends Repository<City, Long> {
+interface CityRepository extends Repository<City, Long> {
 
 	Page<City> findAll(Pageable pageable);
 
-	Page<City> findByNameLikeAndCountryLikeAllIgnoringCase(String name, String country,
-			Pageable pageable);
+	Page<City> findByNameContainingAndCountryContainingAllIgnoringCase(String name,
+			String country, Pageable pageable);
 
 	City findByNameAndCountryAllIgnoringCase(String name, String country);
 

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/CityServiceImpl.java

@@ -14,15 +14,11 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.sample.data.jpa.service.impl;
+package org.springframework.boot.sample.data.jpa.service;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.sample.data.jpa.domain.City;
 import org.springframework.boot.sample.data.jpa.domain.HotelSummary;
-import org.springframework.boot.sample.data.jpa.domain.repository.CityRepository;
-import org.springframework.boot.sample.data.jpa.domain.repository.HotelSummaryRepository;
-import org.springframework.boot.sample.data.jpa.service.CitySearchCriteria;
-import org.springframework.boot.sample.data.jpa.service.CityService;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Component;
@@ -32,31 +28,41 @@ import org.springframework.util.StringUtils;
 
 @Component("cityService")
 @Transactional
-public class CityServiceImpl implements CityService {
+class CityServiceImpl implements CityService {
 
 	// FIXME deal with null repository return values
 
-	private CityRepository cityRepository;
+	private final CityRepository cityRepository;
 
-	private HotelSummaryRepository hotelSummaryRepository;
+	private final HotelRepository hotelRepository;
+
+	@Autowired
+	public CityServiceImpl(CityRepository cityRepository, HotelRepository hotelRepository) {
+		this.cityRepository = cityRepository;
+		this.hotelRepository = hotelRepository;
+	}
 
 	@Override
 	public Page<City> findCities(CitySearchCriteria criteria, Pageable pageable) {
+
 		Assert.notNull(criteria, "Criteria must not be null");
 		String name = criteria.getName();
+
 		if (!StringUtils.hasLength(name)) {
 			return this.cityRepository.findAll(null);
 		}
+
 		String country = "";
 		int splitPos = name.lastIndexOf(",");
+
 		if (splitPos >= 0) {
 			country = name.substring(splitPos + 1);
 			name = name.substring(0, splitPos);
 		}
-		name = "%" + name.trim() + "%";
-		country = "%" + country.trim() + "%";
-		return this.cityRepository.findByNameLikeAndCountryLikeAllIgnoringCase(name,
-				country, pageable);
+
+		return this.cityRepository
+				.findByNameContainingAndCountryContainingAllIgnoringCase(name.trim(),
+						country.trim(), pageable);
 	}
 
 	@Override
@@ -69,16 +75,6 @@ public class CityServiceImpl implements CityService {
 	@Override
 	public Page<HotelSummary> getHotels(City city, Pageable pageable) {
 		Assert.notNull(city, "City must not be null");
-		return this.hotelSummaryRepository.findByCity(city, pageable);
-	}
-
-	@Autowired
-	public void setCityRepository(CityRepository cityRepository) {
-		this.cityRepository = cityRepository;
-	}
-
-	@Autowired
-	public void setHotelSummaryRepository(HotelSummaryRepository hotelSummaryRepository) {
-		this.hotelSummaryRepository = hotelSummaryRepository;
+		return this.hotelRepository.findByCity(city, pageable);
 	}
 }

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/HotelRepository.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.sample.data.jpa.service;
+
+import java.util.List;
+
+import org.springframework.boot.sample.data.jpa.domain.City;
+import org.springframework.boot.sample.data.jpa.domain.Hotel;
+import org.springframework.boot.sample.data.jpa.domain.HotelSummary;
+import org.springframework.boot.sample.data.jpa.domain.RatingCount;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.Repository;
+
+interface HotelRepository extends Repository<Hotel, Long> {
+
+	Hotel findByCityAndName(City city, String name);
+
+	@Query("select new org.springframework.boot.sample.data.jpa.domain.HotelSummary(h.city, h.name, avg(r.rating)) "
+			+ "from Hotel h left outer join h.reviews r where h.city = ?1 group by h")
+	Page<HotelSummary> findByCity(City city, Pageable pageable);
+
+	@Query("select new org.springframework.boot.sample.data.jpa.domain.RatingCount(r.rating, count(r)) "
+			+ "from Review r where r.hotel = ?1 group by r.rating order by r.rating DESC")
+	List<RatingCount> findRatingCounts(Hotel hotel);
+}

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/HotelServiceImpl.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.sample.data.jpa.service.impl;
+package org.springframework.boot.sample.data.jpa.service;
 
 import java.util.HashMap;
 import java.util.List;
@@ -27,11 +27,6 @@ import org.springframework.boot.sample.data.jpa.domain.Rating;
 import org.springframework.boot.sample.data.jpa.domain.RatingCount;
 import org.springframework.boot.sample.data.jpa.domain.Review;
 import org.springframework.boot.sample.data.jpa.domain.ReviewDetails;
-import org.springframework.boot.sample.data.jpa.domain.repository.HotelRepository;
-import org.springframework.boot.sample.data.jpa.domain.repository.HotelSummaryRepository;
-import org.springframework.boot.sample.data.jpa.domain.repository.ReviewRepository;
-import org.springframework.boot.sample.data.jpa.service.HotelService;
-import org.springframework.boot.sample.data.jpa.service.ReviewsSummary;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.stereotype.Component;
@@ -40,15 +35,20 @@ import org.springframework.util.Assert;
 
 @Component("hotelService")
 @Transactional
-public class HotelServiceImpl implements HotelService {
+class HotelServiceImpl implements HotelService {
 
 	// FIXME deal with null repository return values
 
-	private HotelRepository hotelRepository;
+	private final HotelRepository hotelRepository;
 
-	private HotelSummaryRepository hotelSummaryRepository;
+	private final ReviewRepository reviewRepository;
 
-	private ReviewRepository reviewRepository;
+	@Autowired
+	public HotelServiceImpl(HotelRepository hotelRepository,
+			ReviewRepository reviewRepository) {
+		this.hotelRepository = hotelRepository;
+		this.reviewRepository = reviewRepository;
+	}
 
 	@Override
 	public Hotel getHotel(City city, String name) {
@@ -78,26 +78,10 @@ public class HotelServiceImpl implements HotelService {
 
 	@Override
 	public ReviewsSummary getReviewSummary(Hotel hotel) {
-		List<RatingCount> ratingCounts = this.hotelSummaryRepository
-				.findRatingCounts(hotel);
+		List<RatingCount> ratingCounts = this.hotelRepository.findRatingCounts(hotel);
 		return new ReviewsSummaryImpl(ratingCounts);
 	}
 
-	@Autowired
-	public void setHotelRepository(HotelRepository hotelRepository) {
-		this.hotelRepository = hotelRepository;
-	}
-
-	@Autowired
-	public void setHotelSummaryRepository(HotelSummaryRepository hotelSummaryRepository) {
-		this.hotelSummaryRepository = hotelSummaryRepository;
-	}
-
-	@Autowired
-	public void setReviewRepository(ReviewRepository reviewRepository) {
-		this.reviewRepository = reviewRepository;
-	}
-
 	private static class ReviewsSummaryImpl implements ReviewsSummary {
 
 		private Map<Rating, Long> ratingCount;

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/ReviewRepository.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.sample.data.jpa.domain.repository;
+package org.springframework.boot.sample.data.jpa.service;
 
 import org.springframework.boot.sample.data.jpa.domain.Hotel;
 import org.springframework.boot.sample.data.jpa.domain.Review;
@@ -22,7 +22,7 @@ import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.repository.Repository;
 
-public interface ReviewRepository extends Repository<Review, Long> {
+interface ReviewRepository extends Repository<Review, Long> {
 
 	Page<Review> findByHotel(Hotel hotel, Pageable pageable);
 

spring-boot-samples/spring-boot-sample-data-jpa/src/main/java/org/springframework/boot/sample/data/jpa/service/ReviewsSummary.java

@@ -20,6 +20,6 @@ import org.springframework.boot.sample.data.jpa.domain.Rating;
 
 public interface ReviewsSummary {
 
-	public long getNumberOfReviewsWithRating(Rating rating);
+	long getNumberOfReviewsWithRating(Rating rating);
 
 }

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/AbstractIntegrationTests.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.boot.sample.data.jpa;
+
+import org.junit.runner.RunWith;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.initializer.ConfigFileApplicationContextInitializer;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+
+/**
+ * Base class for integration tests. Mimics the behavior of
+ * {@link SpringApplication#run(String...)}.
+ * 
+ * @author Oliver Gierke
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@WebAppConfiguration
+@ContextConfiguration(classes = SampleDataJpaApplication.class, initializers = ConfigFileApplicationContextInitializer.class)
+public abstract class AbstractIntegrationTests {
+
+}

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/SampleDataJpaApplicationTests.java

@@ -1,87 +1,37 @@
-/*
- * Copyright 2012-2013 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package org.springframework.boot.sample.data.jpa;
 
-import java.io.IOException;
-import java.util.concurrent.Callable;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
+import org.junit.Before;
 import org.junit.Test;
-import org.springframework.boot.SpringApplication;
-import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.ResponseEntity;
-import org.springframework.http.client.ClientHttpResponse;
-import org.springframework.web.client.DefaultResponseErrorHandler;
-import org.springframework.web.client.RestTemplate;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
 
-import static org.junit.Assert.assertEquals;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
 /**
- * Basic integration tests for service demo application.
+ * Integration test to run the application.
  * 
- * @author Dave Syer
+ * @author Oliver Gierke
  */
-public class SampleDataJpaApplicationTests {
+public class SampleDataJpaApplicationTests extends AbstractIntegrationTests {
 
-	private static ConfigurableApplicationContext context;
+	@Autowired
+	private WebApplicationContext context;
 
-	@BeforeClass
-	public static void start() throws Exception {
-		Future<ConfigurableApplicationContext> future = Executors
-				.newSingleThreadExecutor().submit(
-						new Callable<ConfigurableApplicationContext>() {
-							@Override
-							public ConfigurableApplicationContext call() throws Exception {
-								return (ConfigurableApplicationContext) SpringApplication
-										.run(SampleDataJpaApplication.class);
-							}
-						});
-		context = future.get(30, TimeUnit.SECONDS);
-	}
+	private MockMvc mvc;
 
-	@AfterClass
-	public static void stop() {
-		if (context != null) {
-			context.close();
-		}
+	@Before
+	public void setUp() {
+		this.mvc = MockMvcBuilders.webAppContextSetup(this.context).build();
 	}
 
 	@Test
 	public void testHome() throws Exception {
-		ResponseEntity<String> entity = getRestTemplate().getForEntity(
-				"http://localhost:8080", String.class);
-		assertEquals(HttpStatus.OK, entity.getStatusCode());
-		assertEquals("Bath", entity.getBody());
-	}
-
-	private RestTemplate getRestTemplate() {
-		RestTemplate restTemplate = new RestTemplate();
-		restTemplate.setErrorHandler(new DefaultResponseErrorHandler() {
-			@Override
-			public void handleError(ClientHttpResponse response) throws IOException {
-			}
-		});
-		return restTemplate;
 
+		this.mvc.perform(get("/")).andExpect(status().isOk())
+				.andExpect(content().string("Bath"));
 	}
-
 }

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/service/CityRepositoryIntegrationTests.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.boot.sample.data.jpa.service;
+
+import org.junit.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.sample.data.jpa.AbstractIntegrationTests;
+import org.springframework.boot.sample.data.jpa.domain.City;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Integration tests for {@link CityRepository}.
+ * 
+ * @author Oliver Gierke
+ */
+public class CityRepositoryIntegrationTests extends AbstractIntegrationTests {
+
+	@Autowired
+	CityRepository repository;
+
+	@Test
+	public void findsFirstPageOfCities() {
+
+		Page<City> cities = this.repository.findAll(new PageRequest(0, 10));
+		assertThat(cities.getTotalElements(), is(21L));
+	}
+}

spring-boot-samples/spring-boot-sample-data-jpa/src/test/java/org/springframework/boot/sample/data/jpa/service/HotelRepositoryIntegrationTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.boot.sample.data.jpa.service;
+
+import java.util.List;
+
+import org.junit.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.sample.data.jpa.AbstractIntegrationTests;
+import org.springframework.boot.sample.data.jpa.domain.City;
+import org.springframework.boot.sample.data.jpa.domain.Hotel;
+import org.springframework.boot.sample.data.jpa.domain.HotelSummary;
+import org.springframework.boot.sample.data.jpa.domain.Rating;
+import org.springframework.boot.sample.data.jpa.domain.RatingCount;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Sort.Direction;
+
+import static org.hamcrest.Matchers.hasSize;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Integration tests for {@link HotelRepository}.
+ * 
+ * @author Oliver Gierke
+ */
+public class HotelRepositoryIntegrationTests extends AbstractIntegrationTests {
+
+	@Autowired
+	CityRepository cityRepository;
+	@Autowired
+	HotelRepository repository;
+
+	@Test
+	public void executesQueryMethodsCorrectly() {
+		City city = this.cityRepository
+				.findAll(new PageRequest(0, 1, Direction.ASC, "name")).getContent()
+				.get(0);
+		assertThat(city.getName(), is("Atlanta"));
+
+		Page<HotelSummary> hotels = this.repository.findByCity(city, new PageRequest(0,
+				10, Direction.ASC, "name"));
+		Hotel hotel = this.repository.findByCityAndName(city, hotels.getContent().get(0)
+				.getName());
+		assertThat(hotel.getName(), is("Doubletree"));
+
+		List<RatingCount> counts = this.repository.findRatingCounts(hotel);
+		assertThat(counts, hasSize(1));
+		assertThat(counts.get(0).getRating(), is(Rating.AVERAGE));
+		assertThat(counts.get(0).getCount(), is(2L));
+	}
+}